How did Westward Expansion contribute to tension between North and South? (What do they want these territories to become?)

Explanation:

Development has contributed to financial prosperity and has ignited the obvious fate, and it has also led to sectional conflict over slaves. There were a lot of segregationists in the north whereas the south was predominantly pro-slavery, which created sectional friction since each person needs to see both values spread to the west.

sumerians were responsible.

the answer is a new goverment.